characteristic: Durable and labor-saving socket wrench. The side design of the inner hexagon adopts a newly designed hollow half angle, which can effectively fix the bolt, and the tight-fitting nut with angle is not loose. Products are made of high-quality carbon steel, with thick material, high hardness, more wear resistance and durability. The polished surface of the product is beautiful and not easy to rust. Used for automobile maintenance. describe: Name: sleeve combination tool set Quantity: 1 set Material: carbon steel colour: silver Package Contents: 1 x Sleeve combination tool set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.